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Finding the Fourth Proportional to 444,638.40, 666,957.60 and 413,145.60

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Solution

The fourth proportional to 444,638.40, 666,957.60 and 413,145.60 is: 619,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,638.40 : 666,957.60 = 413,145.60 : x
  2. Step 2: Convert to fraction form
    444,638.40/666,957.60 = 413,145.60/x
  3. Step 3: Cross multiply
    444,638.40x = 666,957.60 × 413,145.60
  4. Step 4: Simplify right side
    444,638.40x = 275,550,597,826.56
  5. Step 5: Solve for x
    x = 275,550,597,826.56/444,638.40
  6. Step 6: Final answer
    x = 619,718.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.